Results 21 to 30 of about 2,157 (262)

DETECTION AND QUANTIFICATION OF ROCK GLACIER CREEP USING HIGH-RESOLUTION ORTHOIMAGES OF VIRTUAL GLOBES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Rock glaciers are creep phenomena of mountain permafrost and are composed of ice and rocks. Active rock glaciers move downslope by force of gravity. Maximum creep/flow velocities of individual rock glaciers may vary from a few centimeters up to several
V. Kaufmann
doaj   +1 more source

Comment on “Ice content and interannual water storage changes of an active rock glacier in the dry Andes of Argentina” by Halla et al. (2021) [PDF]

The Cryosphere, 2023
Recently published work on water preservation in Chile assumes that “permafrost” (cryogenic) rock glaciers are dominant. Melt pond development shows that rock glaciers are glacier-derived (“glacigenic”) rather than of permafrost origin.
W. B. Whalley
doaj   +1 more source

Mountain glacier-to-rock glacier transition

Global and Planetary Change, 2019
Abstract In many of the world's high mountain systems, glacier recession in response to climate change is accompanied by a paraglacial response whereby glaciers are undergoing a transition to rock glaciers. We hypothesise that this transition has important implications for hydrological resources in high mountain systems and the surrounding lowlands ...
Darren B. Jones, Stephan Harrison, Karen Anderson   +2 more
openaire   +2 more sources

Preliminary report on rock glaciers at the foot of Mt. Riiser-Larsen in Enderby Land, East Antarctica

Antarctic Record, 1998
Part of the debris slopes previously defined as alpine moraines at the foot of Mt. Riiser-Larsen were considered to be active rock glaciers in terms of longitudinal profiles, degree of weathering, size of surface boulders and morphological similarities ...
Shigeru Saigusa, Hideki Miura, Hideaki Maemoku, Kazuomi Hirakawa   +3 more
doaj   +1 more source

The geography of rock glaciers in the American West

Arctic, Antarctic, and Alpine Research
Rock glaciers are relatively common in conterminous United States west of the 100° meridian, yet their distribution and number are not well known. Using aerial and satellite imagery, we inventoried the population of rock glaciers, yielding 2,257 rock ...
Allison Trcka, Andrew G. Fountain, Bryce Glenn   +2 more
doaj   +1 more source

Slow-moving rock glaciers in marginal periglacial environment of Southern Carpathians [PDF]

Earth Surface Dynamics
Rock glaciers, composed of debris and ice, are widely distributed across cold mountain regions worldwide. Although research on rock glaciers is gaining momentum, the distinct behaviour of rock glaciers in the marginal periglacial environments remains ...
A. Onaca, A. Onaca, F. Sîrbu, V. Poncoş, C. Hilbich, T. Strozzi, P. Urdea, P. Urdea, R. Popescu, R. Popescu, O. Berzescu, B. Etzelmüller, A. Vespremeanu-Stroe, M. Vasile, M. Vasile, D. Teleagă, D. Birtaş, I. Lopătiţă, S. Filhol, A. Hegyi, A. Hegyi, F. Ardelean   +21 more
doaj   +1 more source

An inventory of rock glaciers in the central British Columbia Coast Mountains, Canada, from high resolution Google Earth imagery

Arctic, Antarctic, and Alpine Research, 2018
Little is known about the presence, distribution, age, or activity of rock glaciers in the British Columbia Coast Mountains of western Canada. Reflecting debris accumulation and mass wasting under a periglacial climate, these rock glaciers describe a ...
Ansley A. Charbonneau, Dan J. Smith
doaj   +1 more source

Investigating the origin of solutes in rock glacier springs in the Swiss Alps: A conceptual model

Frontiers in Earth Science, 2023
In the current context of climate change, rock glaciers represent potentially important water resources due to the melting of ice they contain and/or their role as high mountain water reservoirs.
Chantal Del Siro, Chantal Del Siro, Cristian Scapozza, Marie-Elodie Perga, Christophe Lambiel   +4 more
doaj   +1 more source

Projected loss of rock glacier habitat in the contiguous western United States with warming

Journal of Glaciology
Rock glaciers support alpine biodiversity and may respond more slowly to warming than snow or glaciers. While responses of snow and glaciers to climate change are relatively well understood, a robust assessment of rock glacier environmental niche, future
Abigail C. Lute, John T. Abatzoglou, Andrew G. Fountain, Timothy C. Bartholomaus   +3 more
doaj   +1 more source

Rock glaciers in central Patagonia [PDF]

Geografiska Annaler: Series A, Physical Geography, 2018
Active rock glaciers are ice and debris-cored landforms common in cold arid mountains. They have not been widely described in the Patagonian Andes of southern South America and here we provide the ...
Heather Selley, Stephan Harrison, Neil Glasser, Olaf Wündrich, Daniel Colson, Alun Hubbard   +5 more
openaire   +2 more sources